Electronic paper display device and flexible substrate for electronic paper display device having frame
The L-shaped groove in the flexible substrate allows for bending without interfering with conductive glue, addressing the limitation of frame width by bypassing the glue area and maintaining circuit integrity.
US12688802B2Active Publication Date: 2026-07-21E INK HLDG INC
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Patent Information
- Authority / Receiving Office
- US · United States
- Patent Type
- Patents(United States)
- Current Assignee / Owner
- E INK HLDG INC
- Filing Date
- 2024-03-07
- Publication Date
- 2026-07-21
Smart Images
Figure US12688802-D00000_ABST
Abstract
An electronic paper display device includes a frame, a flexible substrate, a front panel, and a chip. The flexible substrate includes a first area, a second area, a bending area adjoining the first area and the second area, and a conductive glue disposing area. The first area and the conductive glue disposing area are located on the top surface of the frame. The flexible substrate has an L-shaped groove. When the bending area is bent through the L-shaped groove, the second area extends to the bottom surface of the frame. The front panel is located on the first area of the flexible substrate and has a conductive glue located in a non-display area. The conductive glue is located on the conductive glue disposing area of the flexible substrate. The chip is connected to the second area of the flexible substrate.
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